Finding the Fourth Proportional to 120,526.62, 180,782.74 and 53,948.87
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Solution
The fourth proportional to 120,526.62, 180,782.74 and 53,948.87 is: 80,920.09
Step by Step Solution
- Step 1: Write the proportion equation
120,526.62 : 180,782.74 = 53,948.87 : x - Step 2: Convert to fraction form
120,526.62/180,782.74 = 53,948.87/x - Step 3: Cross multiply
120,526.62x = 180,782.74 × 53,948.87 - Step 4: Simplify right side
120,526.62x = 9,753,024,379.96 - Step 5: Solve for x
x = 9,753,024,379.96/120,526.62 - Step 6: Final answer
x = 80,920.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.